EP3001112A1 - System zur herstellung einer wärmequelle für erwärmungs- oder stromgewinnungszwecke mit mittel-/niedertemperatur-abwärme und verfahren zur steuerung davon - Google Patents
System zur herstellung einer wärmequelle für erwärmungs- oder stromgewinnungszwecke mit mittel-/niedertemperatur-abwärme und verfahren zur steuerung davon Download PDFInfo
- Publication number
- EP3001112A1 EP3001112A1 EP14801158.8A EP14801158A EP3001112A1 EP 3001112 A1 EP3001112 A1 EP 3001112A1 EP 14801158 A EP14801158 A EP 14801158A EP 3001112 A1 EP3001112 A1 EP 3001112A1
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- European Patent Office
- Prior art keywords
- heat
- medium
- temperature
- heat source
- electricity
- Prior art date
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- 230000005611 electricity Effects 0.000 title claims abstract description 58
- 239000002918 waste heat Substances 0.000 title claims abstract description 54
- 238000010438 heat treatment Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 108
- 238000004519 manufacturing process Methods 0.000 claims abstract description 48
- 239000007789 gas Substances 0.000 claims description 19
- 239000006096 absorbing agent Substances 0.000 claims description 18
- 238000011084 recovery Methods 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 230000000740 bleeding effect Effects 0.000 claims description 11
- 239000013535 sea water Substances 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 6
- 239000002826 coolant Substances 0.000 description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 230000002745 absorbent Effects 0.000 description 6
- 239000002250 absorbent Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000003345 natural gas Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 238000010248 power generation Methods 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- MSSNHSVIGIHOJA-UHFFFAOYSA-N pentafluoropropane Chemical compound FC(F)CC(F)(F)F MSSNHSVIGIHOJA-UHFFFAOYSA-N 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D10/00—District heating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/02—Controlling, e.g. stopping or starting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/005—Using steam or condensate extracted or exhausted from steam engine plant by means of a heat pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
- F01K23/101—Regulating means specially adapted therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
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- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
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- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/04—Heat pumps of the sorption type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D18/00—Small-scale combined heat and power [CHP] generation systems specially adapted for domestic heating, space heating or domestic hot-water supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2101/00—Electric generators of small-scale CHP systems
- F24D2101/10—Gas turbines; Steam engines or steam turbines; Water turbines, e.g. located in water pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2103/00—Thermal aspects of small-scale CHP systems
- F24D2103/10—Small-scale CHP systems characterised by their heat recovery units
- F24D2103/13—Small-scale CHP systems characterised by their heat recovery units characterised by their heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/12—Heat pump
- F24D2200/126—Absorption type heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/16—Waste heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2117—Temperatures of an evaporator
- F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
- F25B2700/21172—Temperatures of an evaporator of the fluid cooled by the evaporator at the inlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2117—Temperatures of an evaporator
- F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
- F25B2700/21173—Temperatures of an evaporator of the fluid cooled by the evaporator at the outlet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
- Y02A40/963—Off-grid food refrigeration
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Definitions
- the present invention relates to a system for producing a heat source for heating or electricity, using medium- or low-temperature waste heat, and a method for controlling the same.
- the present invention more particularly relates to a system for selectively producing a heat source for heating or electricity by means of an adsorption-type heat pump, using medium- or low-temperature waste heat, thereby improving waste heat recovery efficiency, and to a method for controlling the system.
- an adsorption-type heat pump has been used as waste heat recovery means for recovering waste heat generated by a power plant or an industrial plant.
- Koran Patent No. 10-975276 (registered on August 5, 2010 ) and Korean Patent No. 10-1052776 (registered on July 25, 2011 ) suggest heating water supply systems for district heating based on an adsorption-type heat pump.
- the heating water supply systems based on an adsorption-type heat pump are highly efficient in recovering waste heat generated by a power plant or an industrial plant in winter seasons in which demand for heating is high but have low waste heat recovery efficiency in summer seasons in which demand for heating is low because an operation ratio of the heat pump is low in summer seasons.
- an object of the present invention is to provide a system for producing a heat source for heating or electricity by means of an adsorption-type heat hump using medium- or low-temperature waste heat and a method for controlling the same system.
- the system can selectively produce a heat source for heating or electricity, thereby improving waste heat recovery efficiency.
- a system for producing a heat source for heating or electricity using medium- or low-temperature waste heat including: an absorption-type heat pump supplied with a driving heat source and heat source water to increase a temperature of a low-temperature heat medium to a high temperature by means of absorption heat in an absorber and condensation heat in a condenser and to discharge the heat medium; a regenerator heat exchange unit for supplying a regenerator with a driving heat source using medium- or low-temperature waste heat; an evaporator heat exchange unit for supplying an evaporator with heat source water; a heat medium circulation line of a closed loop structure for circulating a heat medium that is heated by passing through the absorber and the condenser; a generation unit branching off from the heat medium circulation line to undergo indirect heat exchange with the high-temperature heat medium and to drive a steam turbine on the basis of the Rankine cycle, thereby producing electricity; a heat production unit branching off from the
- the evaporator heat exchange unit may undergo heat exchange with sea water.
- the heat production unit may include a condenser that condenses vapor that exits from the steam turbine and an LNG evaporator that undergoes heat exchange with the condenser.
- the generator heat exchange unit may include: a first heat exchange unit that circulates and supplies a driving heat source to a generator of the heat pump; and a second heat exchange unit that causes exhaust gas that exits from a chimney of a power plant and the first heat exchange unit to undergo indirect heat exchange with each other.
- the system may further include a third heat exchange unit provided on a driving heat source circulation line that is used for circulating a driving heat source between the generator heat exchange unit and the generator of the heat pump, wherein the third heat exchange unit undergoes heat exchange through bleeding of an exhaust heat recovery boiler that recovers heat using exhaust gas discharged from a chimney of a power plant.
- a third heat exchange unit provided on a driving heat source circulation line that is used for circulating a driving heat source between the generator heat exchange unit and the generator of the heat pump, wherein the third heat exchange unit undergoes heat exchange through bleeding of an exhaust heat recovery boiler that recovers heat using exhaust gas discharged from a chimney of a power plant.
- the third heat exchange unit may further include a control valve that is arranged on the driving heat source circulation line so as to be connected in series to the generator heat exchange unit and that controls bleeding.
- the switching valve may include: a first switching valve module that controls the flow of the heat medium such that the heat medium is supplied to the generation unit; and a second switching valve module that controls the flow of the heat medium such that the heat medium is supplied to the heat production unit, wherein the first switching valve module and the second switching valve module are arranged in series with each other on the heat medium circulation line and interlocked with each other to be opened and closed together.
- a method for controlling a system for producing a heat source for heating or electricity, using medium- or low-temperature waste heat comprising: an absorption-type heat pump that includes a generator, a condenser, an evaporator, and an absorber, is supplied with a driving heat source and heat source water to increase a temperature of a heat medium to a high temperature by means of absorption heat in the absorber and condensation heat in the condenser, and to discharges the heated heat medium; a regenerator heat exchange unit for supplying a regenerator with a driving heat source using medium- or low-temperature waste heat; an evaporator heat exchange unit for supplying an evaporator with heat source water; a heat medium circulation line of a closed loop structure for circulating a heat medium that is heated by passing through the absorber and the condenser; a generation unit branching off from the heat medium circulation line to undergo indirect heat exchange with the high-temperature heat medium and to drive a steam turbine on the basis of the
- the method may further include: detecting a temperature of a heat medium that passes through the heat medium circulation line and is discharged from the heat pump; comparing the detected temperature with a preset water temperature; and increasing a flow rate of a driving heat source that is supplied to the heat pump from the generator heat exchange unit when the detected temperature is equal to or lower than the preset water temperature.
- the method may further include: detecting a temperature of a heat medium that passes through the heat medium circulation line and is discharged from the heat pump; comparing the detected temperature with a preset water temperature; and increasing a flow rate of heat source water that is supplied to the heat pump from the evaporator heat exchange unit when the detected temperature is equal to or lower than the preset water temperature.
- a system for producing a heat source for heating or electricity includes an absorption-type heat pump that generates a high-temperature heat medium using medium- or low-temperature waste heat, a heat production unit that supplies a heat-demanding place with a heat source for heating using the high-temperature heat medium generated by the heat pump, and a generation unit that generates electricity on the basis of the organic Rankine cycle using the high-temperature heat medium generated by the heat pump, and a switching valve unit that performs selective switching such that the high-temperature heat medium is supplied to the heat production unit or the generation unit.
- the system can produce electricity in a season in which demand for a heat source for heating is low. Therefore, it is possible to use waste heat generated by a power plant or an industrial plane all through the year, thereby increasing waste heat recovery efficiency.
- first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For instance, a first element discussed below could be termed a second element without departing from the teachings of the present invention. Similarly, the second element could also be termed the first element.
- the present invention includes: an absorption-type heat pump 100 supplied with a driving heat source and heat source water to increase a temperature of a heat medium to a high temperature and discharge the heat medium; an absorption-type heat pump 100 supplied with a driving heat source and heat source water to heat a low-temperature heat medium by means of absorption heat and condensation heat and discharge the heat medium; a regenerator heat exchange unit 210 for supplying a regenerator 110 with a driving heat source using medium- or low-temperature waste heat; an evaporator heat exchange unit 220 for supplying an evaporator with heat source water; a heat medium circulation line 310 of a closed loop structure for circulating a heat medium that is heated by passing through an absorber 140 and a condenser 120; a generation unit 400 branching off from the heat medium circulation line 310 to undergo indirect heat exchange with the high-temperature heat medium and drive a steam turbine 430 on the basis of the Rankine cycle, thereby producing electricity; a heat production unit 500 branching
- the absorption-type heat pump 100 can produce medium-temperature energy from high-temperature driving heat energy and low-temperature waste heat energy by using a heat medium, an absorbent, or a mixture of a heat medium and an absorbent as a circulation material, or produce high-temperature energy and low-temperature energy using medium-temperature waste heat energy as driving heat energy.
- a typical heat pump uses water that can be heated up to a high temperature as a coolant and uses lithium bromide (LiBr) as an absorbent.
- LiBr lithium bromide
- the absorption-type heat pump 100 includes a generator 110 that generates coolant vapor using waste heat as a driving heat source, a condenser 120 that condenses the coolant vapor generated by the generator 110, an evaporator 130 that vaporizes the coolant that is condensed by the condenser 120 using heat source water, and an absorber 140 that generates absorption heat by absorbing the coolant vapor that is generated by the evaporator 130 using an absorbent.
- a weak solution that undergoes absorption of the coolant vapor in the absorber 140 is pressurized by passing through a solution absorbent pump 152 and is then transferred to the generator 110.
- the heat pump 100 may further include a solution heat exchange unit 151 so that the weak solution can be preheated using a strong solution of a high temperature that is supplied from the generator 110 before the weak solution is transferred to the generator 110.
- waste heat serving as a driving heat source is supplied to the generator 100 and thus coolant vapor is generated from the weak solution.
- the coolant vapor undergoes heat exchange with the heat medium in the condenser 120 and is thus condensed.
- the coolant which is the coolant vapor condensed by the condenser 120, absorbs the heat of heat source water in the evaporator 130 and is thus vaporized by the evaporator 130.
- the coolant vapor produced by the evaporator 130 is transferred to the absorber 140 and is absorbed into a strong solution that is supplied to the absorber 140 from the generator 110. As a result, absorption heat is generated.
- the absorption heat is absorbed by a heat medium that is supplied from outside, which increases a temperature of the heat medium and results in production of a weak solution.
- the weak solution in the absorber 140 is transferred to the generator 110 by a liquid absorbent pump 152. The operation cycle described above is repeated.
- the heat medium supplied to the heat pump 100 undergoes primary heating by absorbing absorption heat generated by the absorber 140 and then secondary heating by passing through the condenser 120 that condenses the coolant vapor. After that, the heat medium is discharged from the heat pump 100.
- the heat medium heated by the heat pump 100 circulates through the heat medium circulation line 310 having a closed loop structure.
- the generator heat exchange unit 210 supplies a driving heat source to the generator of the heat pump 100 using medium-temperature waste heat.
- the medium-temperature waste heat may be exhaust gas or vapor that comes out of power plants, fuel cells, or industrial facilities.
- the generator heat exchange unit 210 includes a first heat exchange unit 211 that circulates a driving heat source to the generator of the heat pump 100 and a second heat exchange unit 212 that undergoes indirect heat exchange with exchange gas that exits from a chimney of a power plant and with the first heat exchange unit 211.
- a third heat exchange unit 231 may be provided on a driving heat source circulation line 320 through which a driving heat source is circulated between the generator heat exchange unit 210 and the generator of the heat pump 100.
- the third heat exchange unit 231 undergoes heat exchange through bleeding of a waste heat recovery boiler that recovers heat using the exhaust gas that exits from the chimney of the power plant.
- the third heat exchange unit 231 further includes a control valve 232 that is installed on the driving heat source circulation line 320 and is connected in series to the generator heat exchange unit 210 to control the flow of a heat medium at the time of bleeding. Therefore, it is possible to supply the driving heat source circulation line 320 with additional heat energy through bleeding by operating the control valve.
- the driving heat source of the heat pump 100 can be obtained through the heat exchange with waste heat via the generator heat exchange unit 210.
- the driving heat source of the heat pump 100 may be obtained using an auxiliary heat source and the third heat exchange unit 231.
- the present invention can recover waste heat generated by a combined cycle power plant when it is linked to the combined cycle power plant.
- the present invention can supply a heat-demanding place with a heat source for heating or produce electricity using the recovered heat.
- the evaporator heat exchange unit 220 supplies the evaporator of the heat pump 100 with waste heat of a low temperature within a range from 10 to 40°C as heat source water. Coolant water, sewage, waste water, or sea water discharged from a power plant or an industrial plant can be used as the heat source water.
- Examples of the evaporator heat exchange unit 220 include a sea water heat exchanger or a cooling tower of a power plant or an industrial plant to which the heat pump is linked.
- the generation unit 400 branches off from the heat medium circulation line 310.
- the generation unit 400 undergoes indirect heat exchange with a high-temperature heat medium and drives a steam turbine 430 on the basis of the Rankine cycle, thereby producing electricity.
- the generation unit 400 includes a vapor generator 410 that undergoes heat exchange with the high-temperature heat medium that flows through the heat medium circulation line 310 to generate vapor, a steam turbine 420 that is driven by the steam generator 410 to drive a generator, a condenser 430 that condenses vapor that exits from the steam turbine 420, and a water supply pump 440 that circulates and supplies an operation fluid.
- the generation unit 400 drives the steam turbine 420 on the basis of the Organic Rankine Cycle in which an organic heat medium is used as the operation fluid.
- the organic heat medium has a boiling point lower than that of water. Therefore, the organic heat medium is vaporized at a low temperature, which enables production of electricity using a low-temperature heat source.
- the kind of the organic heat medium is determined according to a temperature range and/or heat efficiency of a cycle.
- a Freon-based material for example, R-245fa
- a carbon-based material for example, propane
- the generation unit 400 may further include an LNG evaporator 431 that performs heat exchange with the condenser 430 that condenses the vapor that exits from the steam turbine 420.
- the LNG evaporator 431 increases a temperature of natural gas that is supplied to a gas turbine from an LNC combined cycle power plant.
- the LNG evaporator is linked to an LNG combined cycle power plant and is a means for heating natural gas.
- the LNG evaporator undergoes heat exchange with the condenser 430 of the generation unit 400.
- the present invention can save energy by being linked to generation facilities of an LNG combined cycle power plant.
- the heat production unit 500 branches off from the heat medium circulation line 310 and undergoes indirect heat exchange with high-temperature heat medium to supply a heat-demanding place with a heat source for heating.
- the heat production unit 500 may be a heat exchanger 510 that undergoes indirect heat exchange with a heat medium.
- the heat production unit 500 may further include an auxiliary heat exchanger 520 that performs heat exchange through the bleeding described above.
- a valve 232 that can control bleeding may be provided on a bleeding supply line.
- the switching valve unit 600 is provided on the heat medium circulation line 310 and can selectively control the flow of the heat medium such that the heat medium is supplied to the generation unit 400 or the heat production unit 500.
- the switching valve unit 600 includes a first switching valve module 610, 620 that controls the flow of a heat medium such that the heat medium is supplied to the generation unit 400 and a second switching valve module 630, 640 that controls the flow of a heat medium such that the heat medium is supplied to the heat production unit 500.
- the first switching valve module 610, 620 and the second switching valve module 630, 640 are arranged in series with each other on the heat medium circulation line 310 and are linked to each other to be opened and closed together.
- Each of the switching valve modules may be a three-way valve, and can be automatically controlled by a control panel 700 to switch channels.
- Fig. 3 is a diagram illustrating the configuration of an LNG combined cycle power plant that can be linked to the system for producing a heat source for heating or electricity according to the present invention.
- natural gas combusts at high temperature and high pressure and is then supplied to a gas turbine 10.
- the gas turbine 10 is driven to perform primary power generation.
- Exhaust gas discharged from the gas turbine 10 is emitted from a chimney 22 via an exhaust gas recovery boiler 20.
- a fluid that is stored in high-pressure, medium-pressure, and low-pressure drums 20a, 20b, and 20c of the waste heat recovery boiler 20 is heated by waste heat of exhaust gas discharged from the gas turbine 10, thereby changing to vapor.
- the vapor of the fluid is supplied to the steam turbine 30 via a vapor pipe by a water supply pump 21.
- the steam turbine 30 is driven to perform secondary power generation.
- the vapor discharged from the steam turbine 30 is condensed by a condenser 31 and then transferred back to the high-pressure, medium-pressure, and low-pressure drums 20a, 20b, and 20c of the waste heat recovery boiler 20 by a condensate pump 32.
- the condenser 31 condenses vapor discharged from the steam turbine 30 in which the vapor is produced through a process in which sea water is circulated by a seawater lifting pump and a circulation pump and undergoes heat exchange.
- the LNG combined cycle power plant is constructed such that the condenser 420 of the generation unit can undergo heat exchange with the LNG evaporator 431. Therefore, it is unnecessary to use an additional heater to heat natural gas. That is, the natural gas can be heated using condensation heat that is generated during operation of the generation unit.
- medium- or low-temperature waste heat of the generator heat exchange unit 210 can be heated using exhaust gas that is transferred to the waste heat recovery boiler 20 from the LNG combined cycle power plant, or vapor that is generated by a drum of the waste heat recovery boiler 20.
- the evaporator heat exchange unit 220 undergoes heat exchange with sea water to supply heat source water to the heat pump 100.
- vapor generated by the waste heat recovery boiler 20 can be used.
- the system of the present invention is linked to the LNG combined cycle power plant, so that waste heat that is generated during operation of a power generation facility can be positively used. In this way, waste heat can be recovered.
- Fig. 4 is a flowchart illustrating a method for controlling the system for producing a heat source for heating or electricity according to one embodiment of the present invention.
- the system of the present invention selectively operates in heat production module S210 or electricity production module S220.
- heat source demand Q of a heat-demanding place is determined (at S100).
- the system of the present invention operates in the heat production module S210.
- the heat source demand Q is equal to or lower than the predetermined heat source demand Q0, the system of the present invention operates in the electricity production module S220.
- a heat source for heating or electricity is selectively produced according to whether it is a winter season or summer season.
- a winter season from November to March
- demand for heating is high. Accordingly, in winter seasons, it is possible to supply a heat-demanding place with a heat source for heating using the heat pump.
- the heat pump 100 operates in winter seasons so that a high-temperature heat medium flows through the heat medium circulation line 310.
- the high-temperature heat medium is transferred to the heat production unit 500 to undergo heat exchange. Therefore, it is possible to supply a heat-demanding place with a heat source (the heat source production mode).
- hot water flows through the heat medium circulation line 310 and a water temperature of the hot water is detected at a hot water outlet of the heat pump 100.
- the detected water temperature is compared with a first preset water temperature T0 (at S211).
- the hot water is supplied to the heat source production unit 500 (at S212).
- a water temperature is detected at an inlet and/or an outlet of the generator of the heat pump 100 and the detected water temperature is compared with a second preset water temperature T1 (at S213).
- a flow rate of water to the generator heat exchange unit 210 and/or the third heat exchange unit 231 is controlled (at S214). In this way, the supply of a driving heat source that is supplied to the generator via the driving heat source circulation line 320 is increased, so that the water temperature at the hot water outlet of the heat pump 100 can be increased.
- a water temperature at an inlet and/or outlet of the evaporator of the heat pump 100 is compared with a third preset water temperature T2 (at S215).
- a flow rate of water to the evaporator heat exchange unit 220 is controlled (at S216). That is, supply of heat source water of the heat pump 100 is increased, so that a water temperature at the hot water outlet of the heat pump 100 can be increased.
- the driving heat source or heat source water supplied to the generator or evaporator of the heat pump 100 is actively controlled so that the hot water supplied to the heat production unit 500 is supplied after being heated to a predetermined temperature.
- the heat pump 100 is operated so that a high-temperature heat medium can flow through the heat medium circulation line 310.
- the high-temperature heat medium is transferred to the generation unit 400 and undergoes heat exchange there, thereby producing electricity by driving the steam turbine (the electricity production mode).
- the generation unit 400 operates to supply electricity (at S222).
- an amount of generated electricity is detected (at S221).
- a water temperature of hot water which flows through the heat medium circulation line 310, is detected at the hot water outlet of the heat pump 100.
- the detected water temperature is compared with the first preset water temperature T0 (at S223).
- a flow rate of coolant that flows through the generation unit 400 is controlled such that the amount of generated electricity is greater than the reference amount (at S224).
- the flow rate of the coolant of the generation unit 400 is controlled through control of the water supply pump 440.
- a water temperature is detected at the inlet and/or outlet of the generator of the heat pump 100 and the detected water temperature is compared with the second preset water temperature T1 (at S225).
- the flow rate of water to the generator heat exchange unit 210 is controlled (at S226) such that the supply of the driving heat source supplied to the generator through the driving heat source circulation line 320 is increased. In this way, the water temperature at the hot water outlet of the heat pump 100 is increased.
- the water temperature at the inlet and/or outlet of the generator of the heat pump 100 is higher than the second preset water temperature T1
- the water temperature at the inlet or outlet of the evaporator of the heat pump 100 is compared with the third preset water temperature T2 (at S227).
- the flow rate of water to the evaporator heat exchange unit 220 is controlled (at S228) such that the supply of heat source water of the heat pump 100 is increased. In this way, the water temperature at the hot water outlet of the heat pump 100 can be increased.
- the amount of electricity produced by the generation unit 400 is determined.
- the flow rate of coolant that circulates through the generation unit 400 is controlled.
- the driving heat source supplied to the generator of the heat pump 100 or the heat source water supplied to the evaporator of the heat pump 100 is actively controlled so that the temperature of the hot water supplied to the generation unit 400 can be increased to a predetermined water temperature. Therefore, electricity can be stably produced.
- temperature detecting means for detecting water temperatures in pipes, and pumps and valves for controlling the flow rate of water in the pipes are not illustrated in the present embodiment, those skilled in the art will appreciate that temperature detecting means and flow rate control means are adequately provided on pipes as necessary to obtain temperature data needed for operation or to control the flow rate.
- production of a heat source for heating or electricity is determined according to whether it is a winter season or summer season through switching of a water channel of the switching valve unit 600 by manipulating a control panel 700.
- the heat source production mode or electricity production mode is selected according to whether it is a winter season or summer season.
- operation in the heat source production mode or the electricity production mode can be selectively determined according to whether it is a day time period or a night time period.
- control panel 700 may receive data such as usage of a heat source for heating, outdoor temperature, and demand for electricity, and the switching valve unit 700 may be automatically controlled based on the data by the control panel 700 according to a programmed process.
- control panel 700 may detect water temperatures of pipes in each operation mode and perform automatic control on the flow rate of hot water so that efficient operation can be performed.
- the system is linked to an LNG combined cycle power plant but it is not limited to the present embodiment.
- medium- or low-temperature waste heat generated by a power plant or an industrial plant can be used.
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KR1020130058509A KR101434908B1 (ko) | 2013-05-23 | 2013-05-23 | 중저온 폐열을 활용한 난방 열원 또는 전기 생산 시스템, 및 그 제어방법 |
PCT/KR2014/004482 WO2014189248A1 (ko) | 2013-05-23 | 2014-05-20 | 중저온 폐열을 활용한 난방 열원 또는 전기 생산 시스템, 및 그 제어방법 |
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JP (1) | JP6059849B2 (de) |
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CN110185512A (zh) * | 2019-05-29 | 2019-08-30 | 河南路卡贝节能技术有限公司 | 一种工业余热发电与热泵供暖耦合的总能系统 |
CN110107368B (zh) * | 2019-06-11 | 2024-04-19 | 赫普科技发展(北京)有限公司 | 蒸汽冷凝方法、蒸汽冷凝系统及发电系统 |
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Publication number | Publication date |
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KR101434908B1 (ko) | 2014-08-29 |
US20160109138A1 (en) | 2016-04-21 |
CN105431685B (zh) | 2018-04-20 |
CN105431685A (zh) | 2016-03-23 |
JP2016524068A (ja) | 2016-08-12 |
WO2014189248A1 (ko) | 2014-11-27 |
JP6059849B2 (ja) | 2017-01-11 |
EP3001112A4 (de) | 2017-03-29 |
US9746191B2 (en) | 2017-08-29 |
EP3001112B1 (de) | 2018-08-01 |
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